jQuery get number from string

Question

I'm trying to use jQuery to pass a height to colorbox. Doing so, the only way I can think to define the height is through the links 'class'. So I'm trying to figure out how to get the number from a string; e.g;

class="height_900" ; I want it to get the number, '900'.

Is this possible with jQuery?

MORE INFO: Ok.. So here's what I'm trying to achieve.

I'm creating a Wordpress Shortcode for colorbox (variation of lightbox). Colorbox sets its height and width via jQuery.

The Wordpress shortcode contains the attributes 'height' & 'width' that allow the user to set both manually if they wish. The problem is, I cannot figure out a way to pass these PHP variables to the colorbox jQuery.

The best solution I could come up with was to have a class that goes as follows: height_$height; e.g. height_450. I then wanted to get just the number via jQuery, then it uses that as that specific colorbox's height. Same for the width.

Answer 1

try this:

parseInt( className.split('_')[1] );